All I can say is HAHAHAHAHA.. It's almost halloween and we should try not to take the bogeyman too seriously. :-)
Judd Tim Pozar wrote: > http://www.techweb.com/wire/story/TWB20031024S0011 > > Urban Wi-Fi Gridlock Predicted To Arrive in 2004 > October 24, 2003 (5:54 p.m. EST) > By W, David Gardner, TechWeb News > > The Wi-Fi world has always had the interference bogeyman lurking > in the shadows, threatening to tie hot spot users in knots. In a > report entitled "The Urban Wi-Fi Crash of 2004," Peter Kastner of > market research firm Aberdeen Group says interference in urban Wi-Fi > nets is close at hand. > > With 300,000 to 400,000 Wi-Fi access points sold every month, Kastner > says it's just a question of time before urban users of the wireless > technology feel the pain. "Even if you are six feet away from your > access point," says Kastner, "some other access point within football > field-wide sphere can ruin your Web surfing or work at home... > Nearby access points can spoil the business access to wireless LANs > just as easily as personal access." > > Kastner, who is senior analyst at Boston-based Aberdeen, says the > more powerful or advanced flavors of 802.11 won't be a help to > users, because they are automatically "dumbed down" by other access > points. "New purchases are going to 802.11g because of the improved > throughput," says Kastner, "but there's absolutely no improvement > in the interface." > > There are potential interference problems galore due to 802.11b and > g technologies residing on the 2.4-GHz band along with cordless > phones and microwave ovens. Adding to the problem is that fact that > faint distant signals on the band can interfere with access points. > There are more channels on the 802.11a GHz band but that technology's > -- more costly to begin with -- consumes more power and range access > suffers beyond 20 feet. > > Kastner has some personal experience on the issue. Set up with a > Wi-Fi laptop in his Boston apartment, he suddenly experienced > interference problems in September. "The event I can point to is > in September when the college kids came back to go to school," he > said. "All of a sudden my laptop got confused by four access points." > > The experience got him to thinking so he researched the phenomenon > and wrote the report. He believes a sort of critical mass of Wi-Fi > interference will be reached in 2004 in many urban areas. "In my > neighborhood," he said, "we've already exceeded the critical mass." > > So what's the solution? > > The idea of more powerful antennas is a non-starter simply because > it doesn't address the interference problem; reception in outlying > areas might improve but antennas and repeaters only worsen the > interference problem by proliferating the number of Wi-Fi access > points that can interfere with each other. Theoretically the measure > of having all Wi-Fi users in a given area using the same SSID > (service set identifier, like "Linksys or WLAN") might work, but > security would be negligible and thereby defeat this approach. > > That leaves a political solution -- convincing politicians and > government agencies to open more wireless spectrum. Says Kastner: > "The long-term solution is to allocate more bandwidth -- and hence > more channels -- to the 2.4 GHz unlicensed radio band." > > -- > general wireless list, a bawug thing <http://www.bawug.org/> > [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
